<div>
  <ol>
    <li>Enter the distance you want to lengthen an entity by in the options
    tool bar. A positive value lengthens the entity, while a negative value
    shortens it. E.g. a value of '5' will lengthen the chosen entity by 5
    units.</li>
    <li>Choose the entity to be lengthened or shortened somewhere close to the
    end you want to modify.</li>
    <li>Right click or press the Escape key to terminate the tool.</li>
  </ol>
  <br />
  <img src="LengthenFigure.png" class="figure" />
</div>
